EP3344117B1 - Dispositif de mesure de la pression intra-oculaire - Google Patents

Dispositif de mesure de la pression intra-oculaire Download PDF

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Publication number
EP3344117B1
EP3344117B1 EP16725192.5A EP16725192A EP3344117B1 EP 3344117 B1 EP3344117 B1 EP 3344117B1 EP 16725192 A EP16725192 A EP 16725192A EP 3344117 B1 EP3344117 B1 EP 3344117B1
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EP
European Patent Office
Prior art keywords
pressure
cornea
flexible membrane
contact
engagement
Prior art date
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Application number
EP16725192.5A
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German (de)
English (en)
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EP3344117A1 (fr
Inventor
David Paul Aviram
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/16—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring intraocular pressure, e.g. tonometers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0008—Apparatus for testing the eyes; Instruments for examining the eyes provided with illuminating means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0261—Strain gauges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/06—Head
    • A61M2210/0612—Eyes

Definitions

  • the invention relates to a device for measuring Intra ocular pressure.
  • Measurement and detection of elevated Intra ocular pressures is a prime method for early detection of the onset of glaucoma.
  • the invention provides a device for measuring intra ocular pressure as defined by claim 1 of the set of claims following this description.
  • this invention provides for a pressure measuring device, characterized in that it has a pressure chamber that is equipped with a flexible membrane for contacting the cornea via an engagement contact lens and a strain measuring piece, on the opposite side of the pressure chamber, for measuring strains. Deflections of the cornea are dependent upon the difference between the applied external chamber pressure and the intraocular pressure. By using metered volumes of fluid to pressurise the chamber, a correlation between applied pressure and strains can be established. Hence, a comparison between strains and a range of applied pressures may be used to enable the determination of a specific range of inter ocular pressures. Results so obtained may be used to provide several data points that reduce errors associated with using a single data point as is the current practice. By such means it is possible to overcome errors due to directionality and local deformations, as mentioned above.
  • a contact lens engagement piece is used for providing hygienic separation between the cornea and the flexible membrane of the pressure chamber.
  • the strain measuring piece may be placed or form part of the flexible membrane and thus be directly affected by pressurisation from within the pressure chamber. In turn, deflections of the cornea will result in corresponding strains at the strain measuring piece. Thus, a correlation between strains and inter ocular pressure may be established.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Biophysics (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Eye Examination Apparatus (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Claims (3)

  1. Ensemble dispositif pour une détermination non-invasive de la pression intra-oculaire (IOP) d'un oeil, qui possède une cornée (2) délimitée par une sclère entourante (1), l'ensemble dispositif comprenant :
    un dispositif de mesure de pression (5) ; et
    un élément d'engagement de lentille de contact (13) ;
    ledit dispositif de mesure de pression (5) comprenant :
    une chambre de pression (10) avec une membrane flexible (4) ;
    un port d'aspiration externe (7) ;
    un port de pression (8) ;
    une bague d'engagement (11) configurée pour être attachée à la sclère (1) ; et
    un moyen de mesure de contrainte (12) ;
    dans lequel :
    le port de pression (8) est en contact fluide avec la chambre de pression (10) et est configuré pour charger la chambre de pression (10) avec un fluide pour exercer une pression sur la cornée via la membrane flexible (4) ;
    la chambre de pression (10) est équipée avec ledit moyen de mesure de contrainte (12), ledit moyen de mesure de contrainte configuré pour déterminer la pression intra-oculaire due à la déviation de la cornée (2) par la pression exercée ; dans lequel la membrane flexible (4) est maintenue sur la sclère (1) au moyen de ladite bague d'engagement (11) dans lequel le contact entre la membrane flexible (4) et la cornée (2) est amélioré au moyen d'un contact entre la sclère (1) et la bague d'engagement (11) et dans lequel la bague d'engagement (11) est équipée d'un canal d'aspiration périphérique (9) qui est en contact fluide avec le port d'aspiration externe (7) ;
    ledit élément d'engagement de lentille de contact (13) possède une bague (14) configurée pour un alignement axial et un engagement avec le canal d'aspiration périphérique (9) de la bague d'engagement (11) et se situe, en utilisation, entre la membrane flexible (4) et la cornée (2) et est en contact avec lesdites membrane (4) et cornée (2), ledit élément d'engagement de lentille de contact (13) étant configuré pour fournir une séparation hygiénique entre la cornée (2) et la membrane flexible (4).
  2. Ensemble dispositif selon la revendication 1, dans lequel la membrane flexible (4) possède une jauge de contrainte (4a) attachée à la surface externe de la membrane flexible (4) pour une détermination de contraintes dues à des variations de pression interne à l'intérieur de la chambre de pression (10).
  3. Ensemble dispositif selon l'une quelconque revendication précédente, dans lequel le dispositif de mesure de pression (5) possède un élément transparent (6) qui permet une investigation des contours de l'iris (3) au moyen d'ultrasons et d'une interférométrie.
EP16725192.5A 2015-04-08 2016-04-08 Dispositif de mesure de la pression intra-oculaire Active EP3344117B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1505995.9A GB2537355A (en) 2015-04-08 2015-04-08 Device for measuring intra ocular pressure
PCT/GB2016/000077 WO2016162653A1 (fr) 2015-04-08 2016-04-08 Dispositif de mesure de la pression intra-oculaire

Publications (2)

Publication Number Publication Date
EP3344117A1 EP3344117A1 (fr) 2018-07-11
EP3344117B1 true EP3344117B1 (fr) 2019-10-02

Family

ID=53190341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16725192.5A Active EP3344117B1 (fr) 2015-04-08 2016-04-08 Dispositif de mesure de la pression intra-oculaire

Country Status (6)

Country Link
US (1) US20180132716A1 (fr)
EP (1) EP3344117B1 (fr)
JP (1) JP2018510754A (fr)
CN (1) CN107624048B (fr)
GB (1) GB2537355A (fr)
WO (1) WO2016162653A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107095643B (zh) * 2017-04-11 2019-01-25 佛山科学技术学院 基于低相干光干涉的非接触眼压检测系统及其检测方法
CN111110187A (zh) * 2020-02-24 2020-05-08 上海交通大学医学院附属第九人民医院 一种指套式眼压测量仪

Family Cites Families (22)

* Cited by examiner, † Cited by third party
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US2708928A (en) * 1948-10-27 1955-05-24 Zenatti Emile Armand Ocular device
US3070087A (en) * 1959-09-29 1962-12-25 Franklin Institute Tonometer
US4628938A (en) * 1985-12-09 1986-12-16 Lee David A Continuous applanation tonometer
CH673760A5 (fr) * 1988-02-09 1990-04-12 Yves Dr Med Robert
DE4295152T1 (de) * 1992-12-28 1995-01-26 Tomey Corp Kontaktlinse für die intraokulare Untersuchung
US6544193B2 (en) * 1996-09-04 2003-04-08 Marcio Marc Abreu Noninvasive measurement of chemical substances
US6373571B1 (en) * 1999-03-11 2002-04-16 Intralase Corp. Disposable contact lens for use with an ophthalmic laser system
EP1208792A1 (fr) * 2000-11-17 2002-05-29 Haag-Streit Ag Dispositif et méthode pour l'examen et/ou traitement de l'oeil
US6863667B2 (en) * 2001-01-29 2005-03-08 Intralase Corp. Ocular fixation and stabilization device for ophthalmic surgical applications
US6893398B2 (en) * 2001-04-19 2005-05-17 Odc Ophthalmic Development Company Ag Device for measuring intraocular pressure, in particular a tonometer
US6623429B2 (en) * 2001-11-06 2003-09-23 Reichert, Inc. Hand-held non-contact tonometer
WO2003039355A1 (fr) * 2001-11-07 2003-05-15 Darren Rich Systeme de gonioscopie
US6923765B2 (en) * 2001-11-21 2005-08-02 A. Mateen Ahmed Tonometer and method of use
IL166962A (en) * 2005-02-17 2012-06-28 Ait Advanced Medical Technologies Ltd Device and method for intra-ocular pressure measurment
US20060270925A1 (en) * 2005-05-27 2006-11-30 Treatyou Medical Technology Co. Tonometer apparatus
US20070106200A1 (en) * 2005-11-08 2007-05-10 Brian Levy Intraocular shunt device and method
WO2009111726A2 (fr) * 2008-03-06 2009-09-11 The Regents Of The University Of California Mesure de la résistance/facilité d'un œil face au débordement
US20100324476A1 (en) * 2009-06-17 2010-12-23 Mikhail Boukhny Fluidics control via wireless telemetry
US8257295B2 (en) * 2009-09-21 2012-09-04 Alcon Research, Ltd. Intraocular pressure sensor with external pressure compensation
CN201814556U (zh) * 2010-09-27 2011-05-04 崔浩 眼压测试仪的压力拾取装置
WO2012101644A2 (fr) * 2011-01-28 2012-08-02 Bar Ilan University Procédé et système de surveillance non invasive de paramètres biologiques et biochimiques d'un individu
US9089401B2 (en) * 2011-05-06 2015-07-28 Alcon Lensx, Inc. Adjusting ophthalmic docking system

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Also Published As

Publication number Publication date
CN107624048B (zh) 2019-11-26
JP2018510754A (ja) 2018-04-19
US20180132716A1 (en) 2018-05-17
WO2016162653A1 (fr) 2016-10-13
EP3344117A1 (fr) 2018-07-11
GB201505995D0 (en) 2015-05-20
CN107624048A (zh) 2018-01-23
GB2537355A (en) 2016-10-19

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